4 files changed, 52 insertions(+), 19 deletions(-)

M Makefile
M README.md
M client.h
M dwl.c

@@ 11,6 11,17 @@ LDLIBS += $(foreach p,$(PKGS),$(shell pkg-config --libs $(p)))
 
 all: dwl
 
+clean:
+	rm -f dwl *.o *-protocol.h *-protocol.c
+
+install: dwl
+	install -D dwl $(PREFIX)/bin/dwl
+
+uninstall:
+	rm -f $(PREFIX)/bin/dwl
+
+.PHONY: all clean install uninstall
+
 # wayland-scanner is a tool which generates C headers and rigging for Wayland
 # protocols, which are specified in XML. wlroots requires you to rig these up
 # to your build system yourself and provide them in the include path.


@@ 47,15 58,6 @@ idle-protocol.o: idle-protocol.h
 config.h: | config.def.h
 	cp config.def.h $@
 
-dwl.o: config.h client.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h idle-protocol.h
+dwl.o: config.mk config.h client.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h idle-protocol.h
 
 dwl: xdg-shell-protocol.o wlr-layer-shell-unstable-v1-protocol.o idle-protocol.o
-
-clean:
-	rm -f dwl *.o *-protocol.h *-protocol.c
-
-install: dwl
-	install -D dwl $(PREFIX)/bin/dwl
-
-.DEFAULT_GOAL=dwl
-.PHONY: clean

@@ 14,26 14,27 @@ dwl is not meant to provide every feature under the sun. Instead, like dwm, it s
 - Any features provided by dwm/Xlib: simple window borders, tags, keybindings, client rules, mouse move/resize. Providing a built-in status bar is an exception to this goal, to avoid dependencies on font rendering and/or drawing libraries when an external bar could work well.
 - Configurable multi-monitor layout support, including position and rotation
 - Configurable HiDPI/multi-DPI support
+- Provide information to external status bars via stdout/stdin
 - Various Wayland protocols
-- XWayland support as provided by wlroots
+- XWayland support as provided by wlroots (can be enabled in `config.mk`)
 - Zero flickering - Wayland users naturally expect that "every frame is perfect"
 
 Features under consideration (possibly as patches) are:
 
 - Protocols made trivial by wlroots
-- Provide information to external status bars via stdout or another file descriptor
+- Implement urgent/focus-request once the xdg-activation protocol [hits wlroots](https://github.com/swaywm/wlroots/pull/2718)
 - Implement the input-inhibitor protocol to support screen lockers
 - Implement the idle-inhibit protocol which lets applications such as mpv disable idle monitoring
 - Layer shell popups (used by Waybar)
 - Basic yes/no damage tracking to avoid needless redraws
 - More in-depth damage region tracking ([which may improve power usage](https://mozillagfx.wordpress.com/2019/10/22/dramatically-reduced-power-usage-in-firefox-70-on-macos-with-core-animation/))
 - Implement the text-input and input-method protocols to support IME once ibus implements input-method v2 (see https://github.com/ibus/ibus/pull/2256 and https://github.com/djpohly/dwl/pull/12)
-- Implement urgent/attention/focus-request once it's part of the xdg-shell protocol (https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/9)
 
-Feature *non-goals* include:
+Feature *non-goals* for the main codebase include:
 
 - Client-side decoration (any more than is necessary to tell the clients not to)
 - Client-initiated window management, such as move, resize, and close, which can be done through the compositor
+- Animations and visual effects
 
 ## Building dwl
 

@@ 141,6 141,17 @@ client_set_size(Client *c, uint32_t width, uint32_t height)
 	return wlr_xdg_toplevel_set_size(c->surface.xdg, width, height);
 }
 
+static inline void
+client_set_tiled(Client *c, uint32_t edges)
+{
+#ifdef XWAYLAND
+	if (client_is_x11(c))
+		return;
+#endif
+	wlr_xdg_toplevel_set_tiled(c->surface.xdg, WLR_EDGE_TOP |
+			WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
+}
+
 static inline struct wlr_surface *
 client_surface(Client *c)
 {

@@ 96,6 96,7 @@ typedef struct {
 	struct wl_listener map;
 	struct wl_listener unmap;
 	struct wl_listener destroy;
+	struct wl_listener set_title;
 	struct wl_listener fullscreen;
 	struct wlr_box geom;  /* layout-relative, includes border */
 	Monitor *mon;


@@ 288,6 289,7 @@ static void unmaplayersurface(LayerSurface *layersurface);
 static void unmaplayersurfacenotify(struct wl_listener *listener, void *data);
 static void unmapnotify(struct wl_listener *listener, void *data);
 static void updatemons(struct wl_listener *listener, void *data);
+static void updatetitle(struct wl_listener *listener, void *data);
 static void view(const Arg *arg);
 static void virtualkeyboard(struct wl_listener *listener, void *data);
 static Client *xytoclient(double x, double y);


@@ 883,14 885,11 @@ createnotify(struct wl_listener *listener, void *data)
 	c->surface.xdg = xdg_surface;
 	c->bw = borderpx;
 
-	/* Tell the client not to try anything fancy */
-	wlr_xdg_toplevel_set_tiled(c->surface.xdg, WLR_EDGE_TOP |
-			WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
-
 	LISTEN(&xdg_surface->surface->events.commit, &c->commit, commitnotify);
 	LISTEN(&xdg_surface->events.map, &c->map, mapnotify);
 	LISTEN(&xdg_surface->events.unmap, &c->unmap, unmapnotify);
 	LISTEN(&xdg_surface->events.destroy, &c->destroy, destroynotify);
+	LISTEN(&xdg_surface->toplevel->events.set_title, &c->set_title, updatetitle);
 	LISTEN(&xdg_surface->toplevel->events.request_fullscreen, &c->fullscreen,
 			fullscreennotify);
 	c->isfullscreen = 0;


@@ 994,6 993,7 @@ destroynotify(struct wl_listener *listener, void *data)
 	wl_list_remove(&c->map.link);
 	wl_list_remove(&c->unmap.link);
 	wl_list_remove(&c->destroy.link);
+	wl_list_remove(&c->set_title.link);
 	wl_list_remove(&c->fullscreen.link);
 #ifdef XWAYLAND
 	if (c->type == X11Managed)


@@ 1304,6 1304,9 @@ mapnotify(struct wl_listener *listener, void *data)
 	c->geom.width += 2 * c->bw;
 	c->geom.height += 2 * c->bw;
 
+	/* Tell the client not to try anything fancy */
+	client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
+
 	/* Set initial monitor, tags, floating status, and focus */
 	applyrules(c);
 }


@@ 1805,15 1808,22 @@ run(char *startup_cmd)
 	setenv("WAYLAND_DISPLAY", socket, 1);
 
 	if (startup_cmd) {
+		int piperw[2];
+		pipe(piperw);
 		startup_pid = fork();
 		if (startup_pid < 0)
 			EBARF("startup: fork");
 		if (startup_pid == 0) {
-			dup2(STDERR_FILENO, STDOUT_FILENO);
+			dup2(piperw[0], STDIN_FILENO);
+			close(piperw[1]);
 			execl("/bin/sh", "/bin/sh", "-c", startup_cmd, NULL);
 			EBARF("startup: execl");
 		}
+		dup2(piperw[1], STDOUT_FILENO);
+		close(piperw[0]);
 	}
+	/* If nobody is reading the status output, don't terminate */
+	signal(SIGPIPE, SIG_IGN);
 
 	/* Run the Wayland event loop. This does not return until you exit the
 	 * compositor. Starting the backend rigged up all of the necessary event


@@ 2292,6 2302,14 @@ updatemons(struct wl_listener *listener, void *data)
 }
 
 void
+updatetitle(struct wl_listener *listener, void *data)
+{
+	Client *c = wl_container_of(listener, c, set_title);
+	if (c == focustop(c->mon))
+		printstatus();
+}
+
+void
 view(const Arg *arg)
 {
 	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])


@@ 2427,6 2445,7 @@ createnotifyx11(struct wl_listener *listener, void *data)
 			activatex11);
 	LISTEN(&xwayland_surface->events.request_configure, &c->configure,
 			configurex11);
+	LISTEN(&xwayland_surface->events.set_title, &c->set_title, updatetitle);
 	LISTEN(&xwayland_surface->events.destroy, &c->destroy, destroynotify);
 	LISTEN(&xwayland_surface->events.request_fullscreen, &c->fullscreen,
 			fullscreennotify);